Weather History for Portland, OR

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Sunday, March 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 49 °F 46 °F  
Max Temperature 57 °F 55 °F 69 °F (1987)
Min Temperature 40 °F 38 °F 26 °F (1960)
Degree Days  
Heating Degree Days 16 19  
Month to date heating degree days 79 76  
Since 1 July heating degree days 3167 3134  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 41 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in 0.13 in 0.76 in (1996)
Month to date precipitation 0.34 0.55  
Year to date precipitation 9.99 9.09  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.28 in    
Wind  
Wind Speed 2 mph (WNW)    
Max Wind Speed 8 mph    
Max Gust Speed 9 mph    
Visibility 4 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Mar. 04, 2012 Rise Set
Actual Time 6:42 AM PST 6:02 PM PST
Civil Twilight 6:12 AM PST 6:32 PM PST
Nautical Twilight 5:38 AM PST 7:06 PM PST
Astronomical Twilight 5:03 AM PST 7:40 PM PST
Moon 2:11 PM PST (3/4) 4:16 AM PST (3/4)
Length of Visible Light 12h 19m
Length of Day
11h 19m
Waxing Gibbous, 84% of the Moon is Illuminated
Mar 4
Waxing Gibbous
Mar 8
Full
Mar 14
Last Quarter
Mar 22
New
Mar 30
First Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 44.1 °F 40.8 °F 43.0 °F 96% 30.39 in 0.5 mi WNW 5.8 mph - N/A   Overcast
1:16 AM 42.8 °F 38.6 °F 42.8 °F 100% 30.39 in 0.5 mi West 6.9 mph - N/A   Overcast
1:32 AM 42.8 °F 38.6 °F 42.8 °F 100% 30.39 in 0.5 mi WNW 6.9 mph - N/A   Overcast
1:39 AM 42.8 °F 39.3 °F 42.8 °F 100% 30.39 in 0.2 mi WNW 5.8 mph - N/A Fog Fog
1:53 AM 42.1 °F 39.2 °F 41.0 °F 96% 30.39 in 0.2 mi West 4.6 mph - N/A Fog Fog
2:00 AM 42.8 °F 39.3 °F 41.0 °F 93% 30.38 in 0.2 mi West 5.8 mph - N/A Fog Fog
2:42 AM 42.8 °F 39.3 °F 41.0 °F 93% 30.37 in 0.2 mi WNW 5.8 mph - N/A Fog Fog
2:53 AM 42.1 °F 37.7 °F 41.0 °F 96% 30.37 in 0.2 mi WNW 6.9 mph - N/A Fog Fog
3:18 AM 42.8 °F 40.1 °F 41.0 °F 93% 30.36 in 0.2 mi NW 4.6 mph - N/A Fog Fog
3:28 AM 41.0 °F 39.0 °F 39.2 °F 93% 30.36 in 0.2 mi NW 3.5 mph - N/A Fog Fog
3:53 AM 42.1 °F - 41.0 °F 96% 30.35 in 0.2 mi Calm Calm - N/A Fog Fog
4:35 AM 41.0 °F - 39.2 °F 93% 30.35 in 0.2 mi Calm Calm - N/A Fog Fog
4:53 AM 41.0 °F - 39.9 °F 96% 30.35 in 0.2 mi Calm Calm - N/A Fog Fog
5:53 AM 39.9 °F - 39.0 °F 97% 30.34 in 0.2 mi Calm Calm - N/A   Overcast
6:32 AM 41.0 °F - 39.2 °F 93% 30.34 in 0.2 mi Calm Calm - N/A Fog Fog
6:53 AM 41.0 °F - 39.9 °F 96% 30.33 in 0.2 mi Calm Calm - N/A Fog Fog
7:11 AM 41.0 °F - 39.2 °F 93% 30.33 in 0.2 mi Calm Calm - N/A Fog Fog
7:53 AM 41.0 °F - 39.9 °F 96% 30.32 in 0.2 mi Calm Calm - N/A Fog Fog
8:53 AM 42.1 °F - 41.0 °F 96% 30.32 in 0.5 mi Calm Calm - N/A Fog Fog
9:32 AM 42.8 °F 41.1 °F 41.0 °F 93% 30.33 in 0.2 mi NNW 3.5 mph - N/A Fog Fog
9:53 AM 42.1 °F 39.2 °F 41.0 °F 96% 30.33 in 0.2 mi NNW 4.6 mph - N/A Fog Fog
10:44 AM 42.8 °F - 41.0 °F 93% 30.33 in 0.5 mi Calm Calm - N/A Fog Fog
10:53 AM 42.1 °F 40.2 °F 39.9 °F 92% 30.32 in 1.0 mi North 3.5 mph - N/A   Overcast
11:08 AM 44.6 °F - 41.0 °F 87% 30.32 in 2.0 mi Calm Calm - N/A   Overcast
11:27 AM 44.6 °F 43.1 °F 41.0 °F 87% 30.31 in 3.0 mi WNW 3.5 mph - N/A   Overcast
11:53 AM 46.0 °F 44.8 °F 41.0 °F 83% 30.30 in 7.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
12:08 PM 48.2 °F - 42.8 °F 82% 30.30 in 10.0 mi WSW 3.5 mph - N/A   Scattered Clouds
12:53 PM 51.1 °F - 43.0 °F 74% 30.27 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:53 PM 54.0 °F - 42.1 °F 64% 30.23 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
2:53 PM 55.0 °F - 42.1 °F 62% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:53 PM 55.9 °F - 39.9 °F 55% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 PM 57.0 °F - 41.0 °F 55% 30.15 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:53 PM 53.1 °F - 41.0 °F 64% 30.12 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
6:53 PM 51.1 °F - 42.1 °F 71% 30.12 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:53 PM 48.0 °F - 41.0 °F 77% 30.11 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:53 PM 46.0 °F - 41.0 °F 83% 30.10 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:53 PM 44.1 °F - 41.0 °F 89% 30.09 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:53 PM 42.8 °F 41.1 °F 39.2 °F 87% 30.08 in 10.0 mi ESE 3.5 mph - N/A   Scattered Clouds
11:53 PM 42.1 °F 39.2 °F 39.9 °F 92% 30.06 in 10.0 mi ESE 4.6 mph - N/A   Mostly Cloudy